The correct option is B Papaver somniferum
Morphine which is extracted from the latex of poppy plant Papaver somniferum. Morphine is considered the classic opioid analgesic (a substance that reduces pain).
Cinchona officinalis is a medicinal plant, one of several Cinchona species used for the production of quinine, which is an anti-fever (anti-malarial) agent.
Taxus brevifolia, the Pacific yew or western yew, is a species of tree in the yew family Taxaceae, native to the Pacific Northwest of North America.
Berberis nilghiriensis is a species of plant in the family Berberidaceae.